Dyadic's Executive Officers and Key Employees Announce Their Resignation

Executive Officers and Key Employees Announce Their Resignation

Fla. - June 5, 2008 - Dyadic International, Inc. (the "Company") announced today

that, on May 30, 2008, the Company received notice from all of its executive

officers and certain key employees of their resignation from the Company

effective June 20, 2008 upon the earlier to occur of the election of directors

at the Company's annual stockholders meeting and 3:00 p.m. on such date (the

"Effective Time"). In this regard, (i) Wayne Moor, Chief Executive

Officer, President and a member of the Company's Board of Directors and

Executive Committee of the Board, tendered his written resignation to become

effective at the Effective Time, and (ii) Lisa De La Pointe, Chief Financial

Officer and Executive Vice President, Alexander (Sasha) Bondar, Chief Business

Officer and Executive Vice President, Kent M. Sproat, Executive Vice President,

Manufacturing, Daniel Michalopoulos, Senior Vice President, Research and

Development, and Charles W. Kling IV, Senior Vice President, Sales and Marketing

(collectively, the "Senior Managers") provided written notice of their

resignations from the Company effective at the Effective Time. All of

such persons have indicated their commitment to continue to work for the

Company, and to assist in facilitating a smooth and orderly transition, through

connection with their resignations, the Senior Managers all cited Mark A.

Emalfarb's return to (and anticipated re-employment by) the Company as their

reason for resigning, and allege that they have been constructively terminated

without cause and thus are entitled to certain severance and other payments

under their employment agreements. On June 5, 2008, the Company's

outside counsel sent a letter to the Senior Managers' counsel responding to the

resignation letters submitted by the Senior Managers and, among other things,

disputing the Senior Managers' claim of constructive termination.

5, 2008, the Company filed with the Securities and Exchange Commission (the

"SEC") a Current Report on Form 8-K, which includes copies of the above

referenced resignation notices submitted by Wayne Moor and the Senior Managers,

as well as a copy of the Company's response letter (from the Company's outside

counsel) regarding the resignation letters submitted by the Senior

previously disclosed in a Current Report on Form 8-K filed by the Company with

the SEC on May 13, 2008, the Company is no longer required to file reports

(including Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and

Current Reports on Form 8-K) with the SEC for at least the remainder of the

fiscal year ending December 31, 2008 and until such time (if ever) that the

Company has 300 or more holders of record of its common stock at the beginning

of any fiscal year in the future. Notwithstanding the foregoing, the

Company currently intends to continue, when and if it deems appropriate -

through the filing of Form 8-K Current Reports and/or the issuance of press

releases - to inform its stockholders of the occurrence of events that the

Company deems to be important to its stockholders.

International, Inc. is a biotechnology company that uses its patented and

proprietary technologies to conduct research and development activities for the

discovery, development, and manufacture of products and enabling solutions to

the bioenergy, industrial enzyme and pharmaceutical industries.

Cautionary Statement

Regarding Forward-Looking Statements

statements contained in this press release are "forward-looking

statements." These forward-looking statements involve risks and

uncertainties that could cause the Company's actual results, performance or

achievements to be materially different from any future results, performance or

achievements expressed or implied by such forward-looking

statements. For a discussion of these risks and uncertainties, please

see the Company's filings from time to time with the Securities and Exchange

Commission, which are available free of charge on the SEC's web site at

http://www.sec.gov, including the Company's Annual Report on Form 10-KSB for the

year ended December 31, 2006, and the Company's subsequent filings with the

SEC. Except as required by law, the Company expressly disclaims any

intent or obligation to update any forward-looking statements.

Relations Counsel to Dyadic International, Inc., 310-826-5051